See also:

Cleaning the steering wheel and gear or selector lever
Thoroughly wipe with a damp cloth or use leather care agents that have been recommended and approved by Mercedes-Benz. ...

2010 Mercedes-Benz GLK-Class Review
In many parts of the world, Mercedes-Benz cars and trucks are sought for their utilitarian value. A cab driver in South Africa or a delivery truck driver in Kazakhstan is less impressed with the M ...

General notes
If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key. If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system w ...